George St. Pierre made the list of richest MMA fighters in the world with a net worth of $30 million. “For me, personally, when I’m afraid of something – when you’re afraid of something, normally you try to go away, you try to avoid it. Instead of avoiding it, to overcome yo...
Funding: This research was funded by the Natural Science Research Projects of Anhui Universi- ties, grant numbers KJ2020A0304 and KJ2019A0127, and the Research Foundation of the Institute of Environment-friendly Materials and Occupational Health of Anhui University of Science and Technology (Wuhu)...